Title
Consider and take action on the award of a construction contract to David Wight Construction Co. Ltd in the amount of $121,393 for the Driveway and Parking Improvements for the Line Repair Facility, and authorization of a Work Change Directive budget of $12,139 (Deputy City Manager)
Background:
Approval of this item will award the construction contract to David Wight Construction Co. Ltd for construction of a concrete paving system for the Driveway and Parking Improvements for the Line Repair Facility.
The purpose of this project is to replace approximately 1,480 square yards of the existing crushed limestone driveway and parking area with a permanent and durable pavement material. At the City Council Meeting held on April 8, 2014, City Council voted to postpone the Award of Bid and requested staff to obtain a Geotechnical Engineering Report to evaluate the concrete and asphalt pavement system to determine the proper design for the Driveway and Parking Improvements.
Included in this Agenda Item package, is the Geotechnical Engineering Report for the Paving Improvements at the Line Repair Facility, prepared by Terracon Consultants, Inc. Terracon’s report recommends a concrete pavement system with a minimum 7-inch reinforced concrete, underlain by a minimum 6-inch lime or cement treated subgrade. Section 4.3 of the report further states: “Based on the subsurface soil conditions observed at this site and our experience with similar soil conditions and existing drainage conditions, we recommend a concrete pavement system be considered for this project.”
Terracon’s report also states: “The asphalt concrete pavement system, if planned, should consist of a minimum 3-inch asphaltic concrete surface course underlain by a minimum 10-inch cement treated base course with a minimum 6-inch lime or cement treated subgrade.”
City Staff bid this project with a Base Bid for the construction of the driveway and parking using 7-inch reinforced concrete pavement with 6-...
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